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David 'Digit' Turnerc817c522010-06-09 17:02:09 -07001/* $OpenBSD: getopt.h,v 1.1 2002/12/03 20:24:29 millert Exp $ */
2/* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */
3
4/*-
5 * Copyright (c) 2000 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Dieter Baron and Thomas Klausner.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#ifndef _GETOPT_H_
41#define _GETOPT_H_
42
43#include <sys/cdefs.h>
44
45/*
46 * GNU-like getopt_long() and 4.4BSD getsubopt()/optreset extensions
47 */
48#define no_argument 0
49#define required_argument 1
50#define optional_argument 2
51
52struct option {
53 /* name of long option */
54 const char *name;
55 /*
56 * one of no_argument, required_argument, and optional_argument:
57 * whether option takes an argument
58 */
59 int has_arg;
60 /* if not NULL, set *flag to val when option found */
61 int *flag;
62 /* if flag not NULL, value to set *flag to; else return value */
63 int val;
64};
65
66__BEGIN_DECLS
67int getopt_long(int, char * const *, const char *,
68 const struct option *, int *);
69int getopt_long_only(int, char * const *, const char *,
70 const struct option *, int *);
71#ifndef _GETOPT_DEFINED_
72#define _GETOPT_DEFINED_
73int getopt(int, char * const *, const char *);
David 'Digit' Turner7c2ba502010-10-08 17:07:39 +020074
David 'Digit' Turnerc817c522010-06-09 17:02:09 -070075
76extern char *optarg; /* getopt(3) external variables */
77extern int opterr;
78extern int optind;
79extern int optopt;
80extern int optreset;
David 'Digit' Turner7c2ba502010-10-08 17:07:39 +020081
82#if 0 /* MISSING FROM BIONIC */
83int getsubopt(char **, char * const *, char **);
84extern char *suboptarg; /* getsubopt(3) external variable */
85#endif /* MISSING */
86
David 'Digit' Turnerc817c522010-06-09 17:02:09 -070087#endif
88__END_DECLS
David 'Digit' Turner7c2ba502010-10-08 17:07:39 +020089
David 'Digit' Turnerc817c522010-06-09 17:02:09 -070090#endif /* !_GETOPT_H_ */